另一个问题是访问共享文件系统的速度会降低。
Another problem is that the speed of access to the Shared file system is reduced.
文件系统是最常见的共享资源之一。
msync()：用来让共享内存段与文件系统同步 —当把文件映射到内存时，这种技术有用。
msync(): Used to synchronize a shared memory segment with the file system—a technique useful when mapping a file into memory.
研究分布式环境下高效易用的文件系统监控技术，为分布式应用提供可靠的文件存储、安全的文件共享，具有重要的现实意义。
The research of distributed file system monitoring technique, which provides reliable file storing and safe file sharing, is practical and principal.
同文件系统相比，由于数据库实现了数据共享，从而避免了用户各自建立应用文件。
A system compare, because the database carried out the data share, thus avoided the customer each from applied document of establishment.
同文件系统相比，由于数据库实现了数据共享，从而避免了用户各自建立应用文件。
The of the same language piece system compare, because the database carried out a data share and avoided thus the customer respectively builds up an applied document.
注意：使用所有共享目录会暴露安全风险，因为共享目录可能会使虚拟机中的程序在你不知情的情况下存取主机文件系统。
Caution Enabling all Shared folders can pose a security risk because a Shared folder might enable existing programs inside the virtual machine to access the host file system without your knowledge.
注意：使用所有共享目录会暴露安全风险，因为共享目录可能会使虚拟机中的程序在你不知情的情况下存取主机文件系统。
Caution Enabling all Shared folders can pose a security risk because a Shared folder might enable existing programs inside the virtual machine to access the host file system without your knowledge.
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